package controller;

import com.fasterxml.jackson.databind.ObjectMapper;
import model.User;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: a
 * Date: 2022-12-07
 * Time: 19:18
 */
@WebServlet("/userinfo")
public class UserInfo extends HttpServlet {
    private ObjectMapper objectMapper = new ObjectMapper();

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //先获取当前是哪个用户登录的
        HttpSession session = req.getSession(false);
        if (session == null) {
            resp.setStatus(403);
            resp.setContentType("text/html;charset=utf8");
            resp.getWriter().write("当前未登录!");
            return;
        }
        User user = (User) session.getAttribute("user");
        if (user == null) {
            resp.setStatus(403);
            resp.setContentType("text/html;charset=utf8");
            resp.getWriter().write("当前未登录!");
            return;
        }
        // 请求来自微博列表页, 直接返回登录的用户信息.
        //user.setPassword("");
        resp.setContentType("application/json;charset=utf8");
        String jsonString = objectMapper.writeValueAsString(user);
        resp.getWriter().write(jsonString);
    }
}
